Generally, it takes at least 180 days (6 months) for a credit card to be opened for a limit increase. If you want to get a limit increase, you need to follow the following conditions:

1. Eliminate bad card use records. Pay off your loan on time.

2. Use it frequently, and it is best to use up the limit to let the bank know your actual situation.

3. Using real estate to obtain a certificate is also a way, but banks generally will not accept it. It is recommended that you print a payslip (if you have one), other banks can also do it.

4. Another way is to open a few more debit cards to let the other party understand that you have always been their customer, not just a credit card customer.